As that is technically true, a doctor who earns several times the minimum wage, has enough money saved up so he can quit his job at any moment and can even afford to open his own clinic if he so chooses to, isn’t the same as someone who earns the minimum wage and has a rent to pay or become homeless.
Sure, both technically work, but one has a completely different level of freedom than the other.
I have some bad news for you. Whatever software switch your phone has to “turn off” the mic, can still be bypassed by either the manufacturer or an attacker that gets root control of the device.
The only way to ensure a mic isn’t listening is by either unsoldering it or shorting the + and - contacts. I mean in the case of a phone you can probably do the toothpick thing and then test it and repeat until sound actually quiets, but note that phones can actually listen to you by via the accelerometer :/